Liquid packing.



W. K. RICHARDSON.

LIQUID PACKING.

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1 014 850. v Patented Jan. 16, 1912.

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Specification of Lett ers Patent.-

Patented Jan, 16,1912,

Application filed m 12, 1911. I Serial No. 626,848.

To all whom it may concern i 1 Be it known that I, TILLIAM K. RICHARD- SON, a citizen of the United States, residing at Leavenworth, in the county of Leavenworth and State of Kansas, have invented a new and useful Liquid Packing, of which the following is a specification.

This invention relates to a liquid packing for rotary shafts and centrifugal machines.

The object of the invention is to produce a packing that will hermetically seal the passage between the rotary and stationary members of a machine where internal or external pressure is to be confined, to prevent heating of the parts requiring a packing, and other objects hereinafter described and claimed, I attain these objects by the mechanism illustrated in the accompanying drawing which is a vertical cross-section of the entire apparatus.

1, indicates a vertical shaft; 2, indicates a stationary member of a machine equipped with a rotary shaft, said member 2, havlng a central recess 3, through which the shaft extends.

4, indicates a thimble, which slips over shaft 1, and is retained in position after adjustment by set-screw 5, the upper end of the thimble being threaded for the reception of packing gland 6, and is for the purpose of preventing the passage of a fluid between the shaft 1, and the thimble 4, the lower-portion of member 4, has an upward inclined annular projection to which is bolted the centrally perforated disk 7 forming a V shaped ocket or chamber.

8, indicates a gland, which acts as a cover to chamber 3, and is retained in position by bolts 9, said gland having a downward flange at its perforation, and provided with a left hand thread on its lower periphery for the reception of rin 10. The central perforation of gland 8, 1s sutficiently large to leave a clearance 11, between the thimble 4, and the downward flange of member 8, that these two members may never come in metal contact.

Mercury, water, or oil may be used, in the apparatus, dependin upon the conditions of service, speed 0 the machine, and size of the thimble. i

The operation of the device is as follows: The liquid used is introduced into the V shaped chamber by pouring it in the clearance 11, when,the machine is in operation centrifugal force holds the liquid to the 'passage of a-flu'id under pressure, substanexternal pressure is to be resisted, such as atmospheric pressure, due to a vacuum within the machine, atmospheric pressure tends to force air through the clearance passage 11, between members 4 and 8, driving a portion of the liquid in the assage formed by members 4 and 10, tower the periphery; of disk 10, thus shortening the column of liquid on the lower side of 10, and increasing it on the upper side, the longer column of liquid being acted upon by centrifugal force alone, on the other side, counter-balanced'by a shallow or less length of liquid, acted upon by the components, centrifugal force andatmospheric pressure, said atmospheric p'res-- and correspondingly increasing the column of liquid on the lower side of the diskuntil. there is an e uilibrium. established between the longer co umn which is acted'upon by centrifugal force alone,. and the shorter column which is acted upon by the com- I ponents,.' internal pressure and centrifugal force.

This device providesa perfect seal, conserves power, and makes practical high speed machines, and there 1s no wear or heating of the parts where any of. the pres- I cut means are employed to accomplish the sameresults. j ThlS device 1s shown in my "co-pending application'Serial No. 597,581, centrifu al' I water clarifier, but not-therein 'specifica ly claimed! "WhatIclaimisz' r 1 1. A liquid packing, which consists of-a bifurcated jrecess adapted to contain a liquid,

said recess extending from points" less removed to points more removed from'the).

center of rotation,'- and surrounding a sta tlonary member, said li uid being subjected to centrifugal force w ereby it"will hermetically" seal the bifurcate recess to the;

tially as described. d 2. A liquid packing, comprising athimble adapted to receive a rotary member and outer extremity of "the V shaped pocket if i i Should this a turned therewith, said thimble having an end' ofthe thimble rotatesi effecting a sealannular projection, to which is secured :1 against internal, or externa pressure, in the dlsk, 1n a. manner to form an annular champresence of centrlfugal force.

her adapted to c'ontaiil a; fluid, and also WILLIAM K. RICHARDSON. 5 ada ted to receive a stationary centrally. Witnesses:-

per orated disk, secured upon a flange of the M. L. RICHARDSON, cover to the chamber in which the greater F. L. MCGAHEN. 

